Filed: 8/17/2026ACC: 0001104659-26-097527
📋 What this filing means
ALTAROCK PARTNERS LP filed this quarterly 13F‑HR report disclosing 8 equity positions with a total reported market value of $4.24B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
8
Positions
$4.24B
Total AUM (reported)
10.90M
Total Shares
Allocation by class
COMM$4.24B100.0%
Portfolio Concentration
Top 3$3.40B80.3%
4–10$836.73M19.7%
Top 3 weight
80.3%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 10.90M
Sole
Full voting authority
10.90M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole8
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings8
Rows:
AMAZON.COM INC
SOLEShares5.73M
TypeSH
Market value$1.37B
32.21%
Sole
5.73M
Shared
0.00
None
0.00
TRANSDIGM GROUP INC
SOLEShares875.75K
TypeSH
Market value$1.17B
27.51%
Sole
875.75K
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares2.33M
TypeSH
Market value$870.81M
20.54%
Sole
2.33M
Shared
0.00
None
0.00
MASTERCARD INC-CLASS A
SOLEShares764.51K
TypeSH
Market value$392.65M
9.26%
Sole
764.51K
Shared
0.00
None
0.00
VISA INC-CLASS A SHRS
SOLEShares836.47K
TypeSH
Market value$286.98M
6.77%
Sole
836.47K
Shared
0.00
None
0.00
MOODYS CORP
SOLEShares302.62K
TypeSH
Market value$137.06M
3.23%
Sole
302.62K
Shared
0.00
None
0.00
ALPHABET INC-CL A
SOLEShares41.99K
TypeSH
Market value$15.01M
0.35%
Sole
41.99K
Shared
0.00
None
0.00
HILTON WORLDWIDE
SOLEShares15.20K
TypeSH
Market value$5.02M
0.12%
Sole
15.20K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
AMAZON.COM INCSOLE | COMM | 5.73M | SH | $1.37B 32.21% | 5.73M | 0.00 | 0.00 |
TRANSDIGM GROUP INCSOLE | COMM | 875.75K | SH | $1.17B 27.51% | 875.75K | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COMM | 2.33M | SH | $870.81M 20.54% | 2.33M | 0.00 | 0.00 |
MASTERCARD INC-CLASS ASOLE | COMM | 764.51K | SH | $392.65M 9.26% | 764.51K | 0.00 | 0.00 |
VISA INC-CLASS A SHRSSOLE | COMM | 836.47K | SH | $286.98M 6.77% | 836.47K | 0.00 | 0.00 |
MOODYS CORPSOLE | COMM | 302.62K | SH | $137.06M 3.23% | 302.62K | 0.00 | 0.00 |
ALPHABET INC-CL ASOLE | COMM | 41.99K | SH | $15.01M 0.35% | 41.99K | 0.00 | 0.00 |
HILTON WORLDWIDESOLE | COMM | 15.20K | SH | $5.02M 0.12% | 15.20K | 0.00 | 0.00 |